/Engine/Source/Editor/SequencerCore/Public/MVVM/Extensions/ISortableExtension.h
Utility function for sorting children based on their sorting key
static void SortChildren ( [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [FViewModel](API\Editor\SequencerCore\MVVM\ViewModels\FViewModel) > ParentModel, [ESortingMode](API\Editor\SequencerCore\MVVM\Extensions\UE__Sequencer__ESortingMode) SortingMode )